I'm taking on the first ever London Summer Run for Cancer Research UK, please help me reach my target and bring forward the day when all cancers are cured. Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving - they'll never sell them on or send unwanted emails. Once you donate, they'll send your money directly to the charity. So it's the most efficient way to donate - saving time and cutting costs for the charity.